Detcon SmartWireless CX User Manual

SmartWireless® CX

www.detcon.com

Sensor Station for SmartWireless®

Mobile Gas Detection System

Operator’s Installation and Instruction Manual

DETCON, Inc.

4055 Technology Forest Blvd.,

The Woodlands, Texas 77381

Ph.713.559.9200 / Fax [phone]

May 30, 2014 • Document #4409 • Revision 1.4

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Sentinel CX

Shipping Address: 4055 Technology Forest Blvd., The Woodlands Texas77381

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

Phone: [phone] • Fax: [phone] • www.detcon.com • [e-mail]

Sentinel CX Sensor Station IM Rev. 1.4 ii

Sentinel CX

Table of Contents

1. Introduction............................................................................................................................................1

1.1 Features ..........................................................................................................................................................1

1.2 Optional Components.....................................................................................................................................2

1.3 Alarms and Fault Condition ........................................................................................................................... 2

1.4 Power Supply-Internal Rechargeable Battery and Charging Accessory ........................................................ 3

1.5 Radio Module................................................................................................................................................. 4

1.6 Sensor Inputs.................................................................................................................................................. 5

1.7 Alarm Outputs................................................................................................................................................ 6

1.8 Power Switch.................................................................................................................................................. 8

1.9 Power Connector............................................................................................................................................ 8

1.10 Remote I/O Cabling Accessory and Safe Use ................................................................................................ 8

2. Safety Guidelines for safe use.............................................................................................................10

3. Installation............................................................................................................................................12

3.1 Initial Setup .................................................................................................................................................. 12

4. Recharging the Internal Battery Pack...............................................................................................18

4.1 Non-Hazardous and Indoor Location ...........................................................................................................18

4.2 Connecting to Mains Supply........................................................................................................................ 18

5. Maintenance and Service Personnel Activities..................................................................................19

5.1 Replacement of Condensation Prevention Packet ........................................................................................ 19

5.2 Replacement of Lithium Ion Battery Pack ................................................................................................... 19

5.3 Proper Cleaning Procedure........................................................................................................................... 19

5.4 Servicing Risks and Verification of Safe State after Servicing .................................................................... 20

6. Troubleshooting Guide........................................................................................................................21

7. Customer Support and Service Policy...............................................................................................22

8. Warranty Notice ..................................................................................................................................23

9. Appendix...............................................................................................................................................24

9.1 Specifications ............................................................................................................................................... 24

9.2 Spare Parts and Wireless Accessories .......................................................................................................... 25

9.3 Revision Log ................................................................................................................................................ 26

Table of Figures

Figure 1 SmartWireless® CX Sensor Station..................................................................................................1

Figure 2 SmartWireless® CXT Radio Module ...............................................................................................4

Figure 3 Sensor Input PCA..............................................................................................................................5

Figure 4 Sensor Input Connector Pin-out........................................................................................................6

Figure 5 Relay PCA.........................................................................................................................................6

Figure 6 External Alarm Connector pin out for ‘Wet’ alarm contacts ............................................................7

Figure 7 External Alarm Connector Pin out for ‘Dry’ alarm contacts.............................................................7

Figure 8 Power Connector...............................................................................................................................8

Figure 9 Mount CX on Tripod.......................................................................................................................13

Figure 10 Attach Sensor Brackets to Tripod .................................................................................................14

Figure 11 A1 C1D2 Alarm Connections .......................................................................................................14

Figure 12 Enclosure.......................................................................................................................................15

Figure 13 Connector to Transceiver ..............................................................................................................15

Figure 14 Battery Bracket in position............................................................................................................16

Sentinel CX Sensor Station IM Rev. 1.4 iii

Sentinel CX

Figure 15 Battery and Battery Bracket ..........................................................................................................16

Figure 16 Battery Connections......................................................................................................................17

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Shipping Address: 4055 Technology Forest Blvd., The Woodlands Texas77381

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

Phone: [phone] • Fax: [phone] • www.detcon.com • [e-mail]

Sentinel CX Sensor Station IM Rev. 1.4 iv

Sentinel CX

1. Introduction

1.1 Features

The SmartWireless® CX Sensor Station (Figure 1) is an accessory to the SmartWireless® CXT. The CX
wirelessly transmits the data from the sensors to the CXT and includes a battery that powers the radio,
alarm devices, and the attached sensors. The CX can sustain up to four 4-20mA wired sensors.

Remote mounted gas detection sensors include any analog 4-20maDC device such as;

 toxic gas,
 combustible gas, or
 oxygen deficiency sensors.

Antenna

Strobe

Power
LED

4-20 Sensor Input PCA
& 4 Relay PCA

Optional

Ext Alarm

Connector

Power

Connector

RXT-320

Transceiver

Power
Switch

Sensor Ports

Battery Pack

Alarm Horn

Figure 1 SmartWireless® CX Sensor Station

The SmartWireless® CX Sensor Station package is a Division 2 assembly housed in a 316 stainless steel
enclosure that offers various connector options for multiple configurations.

System components of the SmartWireless® gas detection system include;

 Smart Wireless CXT Controller
 Smart Wireless CX Sensor Station,
 alarm stations and
 gas detection sensors.

Sentinel CX Sensor Station IM Rev. 1.4 Page 1 of 26

Sentinel CX

SmartWireless® CXT Controller

The Detcon SmartWireless® CXT controller is a multi-channel mobile gas detection control system
mounted on a tripod or a suitable stand. The CXT can be utilized as a self-contained gas detection,
display/alarm system package or wirelessly connected to the main network. The CXT is equipped with an
auto configure system to automatically search for Detcon equipment associated with the controller.

SmartWireless® CX Sensor Station

The SmartWireless® CX Sensor Station is an accessory to the SmartWireless® CXT. The CX wirelessly
transmits the data from up to 4 wired sensors back to the CXT and includes a battery that powers the radio,
alarm devices, and the attached sensors.

Alarm Stations

Alarm stations can be used as part of the gas detection system. Class I Division 1 and Class I Division 2
alarm stations are available. The stations are battery powered and controlled wirelessly by the CXT. The
strobe and horn installed on the CX are activated by the CXT when the alarms levels are reached.

Alarm options are as follows:

1. Integral audio visual mounted on the CX (Class 1; Division 2 only)

2. Standalone audio visual alarm station (Class 1; Division 2)

3. Standalone audio visual alarm station (Class 1; Division 1)

Gas Detection Sensors

Gas sensors with a 4-20mA output can be connected directly to the CX. The Model CX sensors from
Detcon are designed specifically to work with the SmartWireless® CX.

Associated Accessories

The accessories associated for the CX Controller product are as follows:
Detcon Tripod
Detcon Battery Charging Accessory
Detcon Division 2 cables (various)
Detcon Operators Manual

1.2 Optional Components

Options for the SmartWireless® CX Sensor Station are as follows:

 strobe
 horn
 external ‘Wet’ or ‘Dry’ alarm port

1.3 Alarms and Fault Condition

The CX Sensor Station includes an optional strobe and/or a piezoelectric horn and an external alarm
connector. The strobe is associated with Alarm 1, the horn is associated with Alarm2 and the external alarm
connector utilizes all alarm outputs (alarm 1, 2, 3 and fault) for connection to external alarm devices. The
external alarm outputs can be used to control annunciating devices or as signal inputs to other control
devices. The CX permits alarm and fault conditions to cause an assigned relay to fire, triggering external
alarm devices. When the alarm level is reached either the devices mounted to the box or attached to the
external alarm connector are activated, or both. The assigned relay outputs will return to normal state when
a gas alarm or a fault condition clears. The Alarm Relay Output can be either ‘Wet’ or ‘Dry’ determined

Sentinel CX Sensor Station IM Rev. 1.4 Page 2 of 26

Sentinel CX

when the unit is ordered. The ‘Wet output connector provides 12V outputs for external alarms. The ‘Dry’
output connector provides dry contacts for external power to control external alarms.

All alarms can be configured as Energized/De-Energized, Latching/Non-Latching and Silenceable/Non­Silenceable for the relays. This setup must be performed at the controller, refer to the controller manual for
more information.

1.4 Power Supply-Internal Rechargeable Battery and Charging
Accessory

SmartWireless® CX is powered by an internal rechargeable Smart Battery capable of delivering continuous
operation in a no alarm condition for two to eight weeks depending on the quantity and type of sensors tied
to the control panel. The internal re-chargeable battery pack shall only be charged in a non-hazardous area
where the required operating temperature limits are 0C to +45C. It may be used in the field and be
discharged in the temperature range of -20C to +60C.

The internal re-chargeable battery pack shall only be charged in a non-hazardous
area where the required operating temperature limits are 0C to +40C. Charging

CAUTION

outside this temperature range may degrade the life of the battery pack.

The Battery Pack Detcon PN 360-3S6PFP-290 contains an internal protection

circuit which maintains its safe operation against all potential hazard conditions.

CAUTION

No other Battery Pack except Detcon PN 360-3S6PFP-290 may be used in the

operation of this device.

CAUTION

The internal battery can only be recharged in a non-hazardous area and only using the Detcon supplied
Battery Charger Accessory that runs on AC power.

Detcon Approved Battery Charger Accessory Ratings:

AC Input Power

Voltage: 100-240 VAC, 50-60 Hz (requires correct PN version for optional 110 or 220 VAC use)
Current: 2.0 Amps maximum

DC Output Power

Voltage: 24+/- 1 VDC
Current: 3.1 Amps maximum

NOTE 1

Sentinel CX Sensor Station IM Rev. 1.4 Page 3 of 26

No other Battery Charger or VDC input power source may be used with this CX Controller
product.

Sentinel CX

1.5 Radio Module

The SmartWireless® CX offers a wireless option to connect it to the SmartWireless CXT and other devices
wirelessly. The Radio Module includes a transceiver that operates at 2.4GHz and conforms to non-licensed
radio frequency usage worldwide. Spread spectrum technology supports integrity and security for the
wireless network.

The SmartWireless CXT and CX products use a wireless network with a mesh topology. If radio
communication directly between two devices is impossible due to distance or obstruction, each wireless
device is capable of locating an alternate route through an additional wireless device to communicate with
the designated device. This innovative technology is designed to create a robust network that automatically
routes around congestion and line-of-sight obstacles while improving throughput as subscriber device
density increases.

The radio module is housed in a black ABS box mounted inside of the CX stainless steel enclosure. The
standard package includes two PCAs mounted inside the black ABS box (radio PCA and Smart battery
charging PCA), 5 dB antenna, and a protective antenna cover. The battery PCA includes circuitry to safely
recharge the battery from a 24VDC input and a fuel gauge circuit to monitor the charge remaining in the
battery.

The radio PCA includes a 2.4Ghz radio and a rotary switch for setting the RF channel of the system (Figure

2). Use a small screwdriver to rotate the switch until the arrow points to the desired RF channel number (16
channels available, 0h-Fh).

NOTE

All devices within the network must be on the same RF channel to operate correctly.

Each radio module is required to have a unique address. These addresses typically start at 01h and continue
sequentially for each SmartWireless CX in the gas detection system. The radio PCA includes a pair of
rotary switches to set this address (Figure 2).

NOTE

The switch for the most significant digit (MSD) is on the right and the least significant digit
(LSD) is on the left.

Modbus
Address LSD
Switch

RF Channel
Selector Switch

Modbus
Address MSD
Switch

Figure 2 SmartWireless® CXT Radio Module

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Sentinel CX

1.6 Sensor Inputs

The SmartWireless® CX Sensor Station includes a Sensor Input PCA that accepts 4-20mA inputs from up
to 4 attached sensors. The PCA includes two rotary switches to set its Modbus address (Figure 3). This
address is set to 01 for SmartWireless® systems using a CXT or Model X40 controller. If an MCX-32
controller is being used, this address needs to be unique for each CX Sensor Station in the system. For an
MCX-32 system, the addresses should start at 40h and continue sequentially for each CX in the system.

Sensor Connector Ratings

Voltage: 9-11.2 VDC
Current: 100 mA max through any single sensor connector

Modbus Address
LSD Switch

Modbus Address

MSD Switch

Figure 3 Sensor Input PCA

Four "quick connects" on the side of the CX are for sensor connection (Figure 4), supply power to the
sensor from the internal battery and accept the 4-20mA signal from the sensor.

NOTE

Power supplied to the sensors is 11VDC. Any attached sensor must be designed to work at
this voltage level.

The four sensor input lines are fused at the PC board level for safety purposes. These fuses are not
designed for field replacement and shall not under any circumstances be attempted to be changed out by
anyone but Detcon Factory trained Service personnel.

These PC board mounted fuses are not designed for field replacement and shall not
under any circumstances be attempted to be changed out by anyone but Detcon

CAUTION

Factory-Trained Service personnel.

Sentinel CX Sensor Station IM Rev. 1.4 Page 5 of 26

Sentinel CX

Enclosure

PCB

3

4

Shld (Green) 4

PWR (Red) 3

4-20mA (White) 2

GND (Black) 1

Sensor Connector

2

1

1

1

(White) 4-20mA
(Red) PWR
(Black) GND

(Green) Shld

Sensor

Cable to Sensor 1

Figure 4 Sensor Input Connector Pin-out

1.7 Alarm Outputs

The SmartWireless® CX can optionally include an internal Relay PCA for activating alarm annunciators.
The Relay PCA includes four Class I Division 2 Groups A,B,C,D relays. If the SmartWireless® CX
includes an attached strobe and/or horn, these devices are also activated by the Relay PCA.

Each Relay PCA must have a unique Modbus address. The Relay PCA includes a single rotary switch to set
its Modbus address (Figure 5). The most significant digit of the address is hard-wired to “8”. The least
significant digit (LSD) is controlled by the rotary switch. The Relay PCA addresses should start at 80h and
continue sequentially for each SmartWireless® CX in the system.

Alarm Relay Connections

Modbus™
LSD Address

Modbus™

Connections

Internal Alarm
Connections

Figure 5 Relay PCA

If the SmartWireless® CX is ordered with the Relay PCA option, the Relay PCA can be configured to
provide either ‘Wet’ or ‘Dry’ contacts for external annunciator activation. The ‘Wet’ contact option
provides 11V Battery Power to external annunciators when an alarm is initiated. The ‘Wet’ relay contacts
are rated for 9-11.1 VDC, 2A max total (A1, A2, A3, and FLT outputs combined). The “wet” contacts are
available on a 5 pin Alarm Connector (Figure 6). These outputs are specifically meant for external 12V
annunciators such as the external A1 C1D2 Horn, which is designed to operate on the unit’s 12V Battery.

Sentinel CX Sensor Station IM Rev. 1.4 Page 6 of 26